Lawmakers Plan Bill Giving EPA "Solid Waste" CCR Enforcement Authority

(Inside EPA 7-22-2010) House lawmakers are poised to introduce a bill that would give EPA first-time authority to enforce solid waste rules for coal combustion residues (CCR) in an effort to reach a compromise with the agency to avoid more stringent hazardous waste CCR rules, which industry says would obliterate the coal ash recycling industry. 


(Concrete Products 7-23-2010) Testifying July 22 on Capitol Hill, NRMCA President Robert Garbini noted that a potential Environmental Protection Agency plan to classify coal ash as a hazardous waste would exert a significant economic toll on producers nationwide, especially small operators, and make beneficial use of ASTM C618 material in concrete more onerous.


(Concrete Products 7-23-2010) The EPA Office of Resource Conservation and Recovery is accepting speaker preregistration for public hearings on its proposed “Identification and Listing of Special Waste: Disposal of Coal Combustion Residuals from Electric Utilities” rule, whose contentious provisions have drawn sharp criticism from fly ash marketers and users. With morning, afternoon and evening sessions, the hearings are scheduled August 30–September 16 in Arlington, Va.; Denver; Dallas; Charlotte, N.C.; and Chicago.

Army Corps Considering Coal Ash To Fix Levees

(Business Week 7-14-2010) The Army Corps of Engineers wants to use ash cast off from coal-fired electrical generation to shore up dozens of miles of Mississippi River levees, drawing fire from environmentalists worried that heavy metals from the filler might make their way into the river.

Push For Fly Ash Use in Roads

(India Times 7-12-2010) The environment department wants fly ash to be used extensively in various types of construction work, particularly roads and highways. The state flyash management committee will hold a meeting later this month to assess the progress made so far in this regard. 

Air Entrainment and Its Effects

(Today's Concrete Technology 7-10-2010) Air entrainment is the process where many small air bubbles are distibuted into concrete and become part of the matrix that binds the aggregate together in the hardened concrete.
These air bubbles are dispersed throughout the hardened cement paste but are not, by definition, part of the paste (Dolch 1984). Air entrainment has now been an accepted fact in concrete technology for more than 45 years.

Wave Of EPA Regulations Could Overshadow New Pollution Rule

(NASDAQ 7-10-2010) The U.S. Environmental Protection Agency released a major set of power-plant air-pollution rules this week, but even more far- reaching regulations are in the works.
Within the next several months, the EPA is expected to develop new rules to reduce mercury and hazardous air pollutants, while also creating standards for coal ash.
"This regulatory train wreck will have a big impact on the power sector," said Dan Riedinger, a spokesman for the Edison Electric Institute.

The Cost of Regulating Coal Ash in Wisconsin

(Milwaukee News 7-2-2010) New regulations for the disposing of coal ash proposed by the Environmental Protection Agency are likely to increase costs for utilities in Wisconsin, which are particularly dependent on coal – and those costs are expected to be passed on to consumers. The regulations may also make it more difficult for Milwaukee’s utility, WE Energies, to sell the ash, which is a byproduct of the coal burning process. It’s successfully marketed this waste product to concrete, cement and wallboard manufacturers.

Geo-Polymer Concrete Researcher Recognized for PCA Portland Cement Alternative

(Aggregate Research 7-1-2010)  Ivan Diaz-Loya, a senior PhD candidate with the Trenchless Technology Center (TTC) at Louisiana Tech University, has been awarded the prestigious Katharine and Bryant Mather Scholarship by ASTM International for his work in the area of geopolymer concrete, an environmentally friendly alternative to ordinary Portland cement-based concrete.

New Liberty Memorial Bridge Built With Lafarge Fly Ash Concrete

 High-performance fly ash concrete from Lafarge is playing a key role in achieving the high strength, long-term durability, and extended service life goals for the new Liberty Memorial Bridge in Bismarck, N.D., the company said.